Question

Fie A={-5;radical 0,(1);radical8;radical36 supra 2;2radical7;5,6;-1supra3;-16supra-8}
.Determina multimile A apartine N; A apartineZ;A apartineQ;A apartine (R-Q);A-R;A-Q;A-Z.
Va rog frumos

Answer 1

A∈N={radical36 supra 2; -16 supra -8}
A∈Z={-5; radical36 supra 2; -16 supra -8}
A∈Q={-5; radical36 supra 2; 5,6; -1 supra 3; -16 supra -8}
A∈R-Q={radical 0,(1); radical8; 2radical7}
A-R= Ф
A-Q= {radical 0,(1); radical8; 2radical7}
A-Z= {radical 0,(1); radical8; 2radical7; 5,6; -1 supra 3;}